Scrubbing machine



Ann 24, 1930. A. +1. ZUCKER 1,767,109

, scnuaame monng Filed May 11, 1923 2 Sheets-Sheet 1 A TTORNEY.

I N VEN TOR.

June 24, 1930. A. H. zucKEfl 1,767,109

SCRUBBING MACHINE med May 11; 1928 2 Sheets-Sheet 2 Patented June 24, 1930' I 1 7 11% UNITED STATES PATENT oPF -ct:

ABRAHAM H. ZUCKER, OF CLEVELAND, OI'I'IO SGRUBBING MACHINE Application filed May 11, 1928. Serial No. 277,024.

The objects of the invention are to probars C, O and bearings thereon, as shoW-nin vide an improved floor scrubbing machine, Fig. 4:. that is operated by means of an electric The brushes L are mounted detachably in motor which accompanies the machine and metal backs M, provided with spaced verwhich is so designed as to operate the scrubtical rods, N, N, that pass through the bing brushes in a direction transverse to the vertically spaced upper and lower flanges forward movement of the machine, and thus D D of the reciprocatable bars D, D. develop as much friction as possible upon The rods N, N, slide freely in thesebars the floor as the machine is propelled thereand the brushes are resiliently pressed over. against the floor by means of springs D Further objects of th invention are to D enclosed in the space between the flanges provide a multiple number of small brushes D2 D3 and res ing On Shoulders N upon the which are resiliently supported in a common r d 7 bar that is reciprocated transversely of the The rods may be cast in the metal backs 15 machine, thus permitting the brushes to ac- Screwed therelll If ir commodate themselves to an uneven floor P, r h riz ntal metal pipes perfosurface and to perform the work much more rated t r s pplying a Cleaning fluid efiiciently than if larger brushes were em- $011561 111 the Qi t h flOOI v n e ployed that; would a h cover more fl of the brushes where it wlllbe of the great 29 surface. 6st 115%- To accomplish these and other valuable These P P are eehheeted with t 'tahk objects the invention is illustrated in the ac-" f means of V r i ally eXteIlding fieX- companying drawings, hereinafter more lble P p eohtl'ehed h f 3 fully described, and particularly pointed out vetve S to Perhht the P p P to e p 25 i th l j with the bars D, D.

In the accompanying drawings, Fig. 1 is The P P are t the pa plan of the device, Fig. 2 is a front eleleeehle e y Theehe 0t llgld arms vation thereof, Fig. 3 is a side elevation At V 13 ehOWh a rubber Sq that thereof, Fig. 4 is a transverse section of one traverses the heel h the reel f e 'e a so of the reciprocating bars, bronze bearings e d eeheete the eelledehde e g thud '80 and Supporting bar7 and f the f t d in the corner formed at the ]l1n@t1OIl of two supply pipe for cleaning fluid. Fig. 5 is an convergmg Wehe: thhe Prevehtlhg 1t from end elevation of a brush showing means for spheethhg e the ee attaching it to a reciprocating b This collection of soiled fluld 1s then taken In these views A is the frame, B is an p y means 9 e SuCh10n hOse W: and electric motor therein which maybe contleh P W ahd'deposlted separate nected with any convenient socket or floor tank at the e of the e plug I The squeegee V 1s mounted upon a frame C, C are rigid transverse bars connecting of q p g' h p Whl h 1S resilthe sides of the frame, and D, D are chany ghltled p Vertleel rode V2 t are nel bars reciprocable upon the rigid bars movable m theme a ph g 0 respectively in bronze bearings E, press the squeegee resiliently agalnst the thereon. floor The motor B is operatively connected Hevlhg desenhed the lhvehtleh e I 45 with the reciprocable bars D, D, by means ehthh as and desire to Secure y i of speed reducing gearing such as the pinion tere Patent A B and spur gear F, a crank shaft G, t a heel scrubblnsmeglhlne 1h (30mcranks H, H thereon and connecting rods blnation, a frame, longltudinally spaced 1,1 respectively, and rist pins J J which Iigld bars transversely Secured across said Qss through slots K in the rigid transverse frame, brush holding bars, spaced bearings on said rigid bars in which said brush holding bars are movable, said brush holding bars being provided with vertically spaced flanges, brushes underneath each brush holding bar, each brush being provided with vertical rods passing through said spaced flanges, and springs upon said rods, said rods having shoulders thereon, said springs being confined between the upper one of said flanges and said shoulders.

2. In a floor scrubbing machine in combination, a frame, longitudinally spaced rigid bars transversely secured across said frame, brush holding bars, spaced bearings on said rigid bars in which said brush holding bars are movable, said brush holding bars being provided with vertically spaced flanges, brushes underneath each brush holding bar, each brush being provided with vertical rods passing through said spaced flanges, and springs upon said rods, said rods having shoulders thereon, said springs being confined between the upper one of said flanges and said shoulders, and means for reciprocating said brush holding bars.

8. In a floor scrubbing machine, a frame,

rigid bars transversely secured across the lower part of said frame, spaced bearings on said rigid bars and brush holding bars reciprocable in said bearings, a motor and a crank shaft, and connecting rods, wrist pins connecting said brush holding bars,

and said connecting rods, said bearings and rigid bars being provided with openings for the passage of said wrist pins.

4:. In a floor scrubbing machine, in combination a frame, a rigid transverse bar thereon adjacent to its lower edge bearing thereon, a brush holding bar reciprocable in said bearings, said bar being provided with vertically spaced flanges, a multiple number of brushes underneath said bar, each brush being provided with a pair of rods vertically movable in the spaced flanges in said brush holding bar, and springs upon said rods, said springs being confined between the said spaced flanges, said rods having shoulders upon which said springs rest.

5. In a floor scrubbing machine, a frame, rigid transverse bars and bearings thereon, a bar having vertically spaced flanges and reciprocable thereon, a multiple number of brush holding members thereunder, a pair of rods secured to each of said brush holding members and vertically movable in said flanges and springs upon said rods, said rods being provided with shoulders, said springs being confined between the upper one of said flanges and said shoulders.

6. In a floor scrubbing machine, a frame, a pair of bars rigidly secured transversely of the machine and spaced apart therein, bearings thereon, a brush holding bar reciprocable in the bearings in each transverse bar, a multiple number of brushes under- In testimony whereof I affix my signature.

ABRAHAM I-I. ZUCKER. 

